X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Flibrbd%2FWatchNotifyTypes.cc;fp=src%2Fceph%2Fsrc%2Flibrbd%2FWatchNotifyTypes.cc;h=b146eeac3a110e4fc09e3f95d535f328e71bd897;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git

diff --git a/src/ceph/src/librbd/WatchNotifyTypes.cc b/src/ceph/src/librbd/WatchNotifyTypes.cc
new file mode 100644
index 0000000..b146eea
--- /dev/null
+++ b/src/ceph/src/librbd/WatchNotifyTypes.cc
@@ -0,0 +1,463 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "cls/rbd/cls_rbd_types.h"
+#include "common/Formatter.h"
+#include "include/assert.h"
+#include "include/stringify.h"
+#include "librbd/WatchNotifyTypes.h"
+#include "librbd/watcher/Utils.h"
+
+namespace librbd {
+namespace watch_notify {
+
+namespace {
+
+class CheckForRefreshVisitor  : public boost::static_visitor<bool> {
+public:
+  template <typename Payload>
+  inline bool operator()(const Payload &payload) const {
+    return Payload::CHECK_FOR_REFRESH;
+  }
+};
+
+class DumpPayloadVisitor : public boost::static_visitor<void> {
+public:
+  explicit DumpPayloadVisitor(Formatter *formatter) : m_formatter(formatter) {}
+
+  template <typename Payload>
+  inline void operator()(const Payload &payload) const {
+    NotifyOp notify_op = Payload::NOTIFY_OP;
+    m_formatter->dump_string("notify_op", stringify(notify_op));
+    payload.dump(m_formatter);
+  }
+
+private:
+  ceph::Formatter *m_formatter;
+};
+
+} // anonymous namespace
+
+void AsyncRequestId::encode(bufferlist &bl) const {
+  ::encode(client_id, bl);
+  ::encode(request_id, bl);
+}
+
+void AsyncRequestId::decode(bufferlist::iterator &iter) {
+  ::decode(client_id, iter);
+  ::decode(request_id, iter);
+}
+
+void AsyncRequestId::dump(Formatter *f) const {
+  f->open_object_section("client_id");
+  client_id.dump(f);
+  f->close_section();
+  f->dump_unsigned("request_id", request_id);
+}
+
+void AcquiredLockPayload::encode(bufferlist &bl) const {
+  ::encode(client_id, bl);
+}
+
+void AcquiredLockPayload::decode(__u8 version, bufferlist::iterator &iter) {
+  if (version >= 2) {
+    ::decode(client_id, iter);
+  }
+}
+
+void AcquiredLockPayload::dump(Formatter *f) const {
+  f->open_object_section("client_id");
+  client_id.dump(f);
+  f->close_section();
+}
+
+void ReleasedLockPayload::encode(bufferlist &bl) const {
+  ::encode(client_id, bl);
+}
+
+void ReleasedLockPayload::decode(__u8 version, bufferlist::iterator &iter) {
+  if (version >= 2) {
+    ::decode(client_id, iter);
+  }
+}
+
+void ReleasedLockPayload::dump(Formatter *f) const {
+  f->open_object_section("client_id");
+  client_id.dump(f);
+  f->close_section();
+}
+
+void RequestLockPayload::encode(bufferlist &bl) const {
+  ::encode(client_id, bl);
+  ::encode(force, bl);
+}
+
+void RequestLockPayload::decode(__u8 version, bufferlist::iterator &iter) {
+  if (version >= 2) {
+    ::decode(client_id, iter);
+  }
+  if (version >= 3) {
+    ::decode(force, iter);
+  }
+}
+
+void RequestLockPayload::dump(Formatter *f) const {
+  f->open_object_section("client_id");
+  client_id.dump(f);
+  f->close_section();
+  f->dump_bool("force", force);
+}
+
+void HeaderUpdatePayload::encode(bufferlist &bl) const {
+}
+
+void HeaderUpdatePayload::decode(__u8 version, bufferlist::iterator &iter) {
+}
+
+void HeaderUpdatePayload::dump(Formatter *f) const {
+}
+
+void AsyncRequestPayloadBase::encode(bufferlist &bl) const {
+  ::encode(async_request_id, bl);
+}
+
+void AsyncRequestPayloadBase::decode(__u8 version, bufferlist::iterator &iter) {
+  ::decode(async_request_id, iter);
+}
+
+void AsyncRequestPayloadBase::dump(Formatter *f) const {
+  f->open_object_section("async_request_id");
+  async_request_id.dump(f);
+  f->close_section();
+}
+
+void AsyncProgressPayload::encode(bufferlist &bl) const {
+  AsyncRequestPayloadBase::encode(bl);
+  ::encode(offset, bl);
+  ::encode(total, bl);
+}
+
+void AsyncProgressPayload::decode(__u8 version, bufferlist::iterator &iter) {
+  AsyncRequestPayloadBase::decode(version, iter);
+  ::decode(offset, iter);
+  ::decode(total, iter);
+}
+
+void AsyncProgressPayload::dump(Formatter *f) const {
+  AsyncRequestPayloadBase::dump(f);
+  f->dump_unsigned("offset", offset);
+  f->dump_unsigned("total", total);
+}
+
+void AsyncCompletePayload::encode(bufferlist &bl) const {
+  AsyncRequestPayloadBase::encode(bl);
+  ::encode(result, bl);
+}
+
+void AsyncCompletePayload::decode(__u8 version, bufferlist::iterator &iter) {
+  AsyncRequestPayloadBase::decode(version, iter);
+  ::decode(result, iter);
+}
+
+void AsyncCompletePayload::dump(Formatter *f) const {
+  AsyncRequestPayloadBase::dump(f);
+  f->dump_int("result", result);
+}
+
+void ResizePayload::encode(bufferlist &bl) const {
+  ::encode(size, bl);
+  AsyncRequestPayloadBase::encode(bl);
+  ::encode(allow_shrink, bl);
+}
+
+void ResizePayload::decode(__u8 version, bufferlist::iterator &iter) {
+  ::decode(size, iter);
+  AsyncRequestPayloadBase::decode(version, iter);
+
+  if (version >= 4) {
+    ::decode(allow_shrink, iter);
+  }
+}
+
+void ResizePayload::dump(Formatter *f) const {
+  f->dump_unsigned("size", size);
+  f->dump_bool("allow_shrink", allow_shrink);
+  AsyncRequestPayloadBase::dump(f);
+}
+
+void SnapPayloadBase::encode(bufferlist &bl) const {
+  ::encode(snap_name, bl);
+  ::encode(cls::rbd::SnapshotNamespaceOnDisk(snap_namespace), bl);
+}
+
+void SnapPayloadBase::decode(__u8 version, bufferlist::iterator &iter) {
+  ::decode(snap_name, iter);
+  if (version >= 6) {
+    cls::rbd::SnapshotNamespaceOnDisk sn;
+    ::decode(sn, iter);
+    snap_namespace = sn.snapshot_namespace;
+  }
+}
+
+void SnapPayloadBase::dump(Formatter *f) const {
+  f->dump_string("snap_name", snap_name);
+  cls::rbd::SnapshotNamespaceOnDisk sn(snap_namespace);
+  sn.dump(f);
+}
+
+void SnapCreatePayload::encode(bufferlist &bl) const {
+  SnapPayloadBase::encode(bl);
+}
+
+void SnapCreatePayload::decode(__u8 version, bufferlist::iterator &iter) {
+  SnapPayloadBase::decode(version, iter);
+  if (version == 5) {
+    cls::rbd::SnapshotNamespaceOnDisk sn;
+    ::decode(sn, iter);
+    snap_namespace = sn.snapshot_namespace;
+  }
+}
+
+void SnapCreatePayload::dump(Formatter *f) const {
+  SnapPayloadBase::dump(f);
+}
+
+void SnapRenamePayload::encode(bufferlist &bl) const {
+  ::encode(snap_id, bl);
+  SnapPayloadBase::encode(bl);
+}
+
+void SnapRenamePayload::decode(__u8 version, bufferlist::iterator &iter) {
+  ::decode(snap_id, iter);
+  SnapPayloadBase::decode(version, iter);
+}
+
+void SnapRenamePayload::dump(Formatter *f) const {
+  f->dump_unsigned("src_snap_id", snap_id);
+  SnapPayloadBase::dump(f);
+}
+
+void RenamePayload::encode(bufferlist &bl) const {
+  ::encode(image_name, bl);
+}
+
+void RenamePayload::decode(__u8 version, bufferlist::iterator &iter) {
+  ::decode(image_name, iter);
+}
+
+void RenamePayload::dump(Formatter *f) const {
+  f->dump_string("image_name", image_name);
+}
+
+void UpdateFeaturesPayload::encode(bufferlist &bl) const {
+  ::encode(features, bl);
+  ::encode(enabled, bl);
+}
+
+void UpdateFeaturesPayload::decode(__u8 version, bufferlist::iterator &iter) {
+  ::decode(features, iter);
+  ::decode(enabled, iter);
+}
+
+void UpdateFeaturesPayload::dump(Formatter *f) const {
+  f->dump_unsigned("features", features);
+  f->dump_bool("enabled", enabled);
+}
+
+void UnknownPayload::encode(bufferlist &bl) const {
+  assert(false);
+}
+
+void UnknownPayload::decode(__u8 version, bufferlist::iterator &iter) {
+}
+
+void UnknownPayload::dump(Formatter *f) const {
+}
+
+bool NotifyMessage::check_for_refresh() const {
+  return boost::apply_visitor(CheckForRefreshVisitor(), payload);
+}
+
+void NotifyMessage::encode(bufferlist& bl) const {
+  ENCODE_START(6, 1, bl);
+  boost::apply_visitor(watcher::util::EncodePayloadVisitor(bl), payload);
+  ENCODE_FINISH(bl);
+}
+
+void NotifyMessage::decode(bufferlist::iterator& iter) {
+  DECODE_START(1, iter);
+
+  uint32_t notify_op;
+  ::decode(notify_op, iter);
+
+  // select the correct payload variant based upon the encoded op
+  switch (notify_op) {
+  case NOTIFY_OP_ACQUIRED_LOCK:
+    payload = AcquiredLockPayload();
+    break;
+  case NOTIFY_OP_RELEASED_LOCK:
+    payload = ReleasedLockPayload();
+    break;
+  case NOTIFY_OP_REQUEST_LOCK:
+    payload = RequestLockPayload();
+    break;
+  case NOTIFY_OP_HEADER_UPDATE:
+    payload = HeaderUpdatePayload();
+    break;
+  case NOTIFY_OP_ASYNC_PROGRESS:
+    payload = AsyncProgressPayload();
+    break;
+  case NOTIFY_OP_ASYNC_COMPLETE:
+    payload = AsyncCompletePayload();
+    break;
+  case NOTIFY_OP_FLATTEN:
+    payload = FlattenPayload();
+    break;
+  case NOTIFY_OP_RESIZE:
+    payload = ResizePayload();
+    break;
+  case NOTIFY_OP_SNAP_CREATE:
+    payload = SnapCreatePayload();
+    break;
+  case NOTIFY_OP_SNAP_REMOVE:
+    payload = SnapRemovePayload();
+    break;
+  case NOTIFY_OP_SNAP_RENAME:
+    payload = SnapRenamePayload();
+    break;
+  case NOTIFY_OP_SNAP_PROTECT:
+    payload = SnapProtectPayload();
+    break;
+  case NOTIFY_OP_SNAP_UNPROTECT:
+    payload = SnapUnprotectPayload();
+    break;
+  case NOTIFY_OP_REBUILD_OBJECT_MAP:
+    payload = RebuildObjectMapPayload();
+    break;
+  case NOTIFY_OP_RENAME:
+    payload = RenamePayload();
+    break;
+  case NOTIFY_OP_UPDATE_FEATURES:
+    payload = UpdateFeaturesPayload();
+    break;
+  default:
+    payload = UnknownPayload();
+    break;
+  }
+
+  apply_visitor(watcher::util::DecodePayloadVisitor(struct_v, iter), payload);
+  DECODE_FINISH(iter);
+}
+
+void NotifyMessage::dump(Formatter *f) const {
+  apply_visitor(DumpPayloadVisitor(f), payload);
+}
+
+void NotifyMessage::generate_test_instances(std::list<NotifyMessage *> &o) {
+  o.push_back(new NotifyMessage(AcquiredLockPayload(ClientId(1, 2))));
+  o.push_back(new NotifyMessage(ReleasedLockPayload(ClientId(1, 2))));
+  o.push_back(new NotifyMessage(RequestLockPayload(ClientId(1, 2), true)));
+  o.push_back(new NotifyMessage(HeaderUpdatePayload()));
+  o.push_back(new NotifyMessage(AsyncProgressPayload(AsyncRequestId(ClientId(0, 1), 2), 3, 4)));
+  o.push_back(new NotifyMessage(AsyncCompletePayload(AsyncRequestId(ClientId(0, 1), 2), 3)));
+  o.push_back(new NotifyMessage(FlattenPayload(AsyncRequestId(ClientId(0, 1), 2))));
+  o.push_back(new NotifyMessage(ResizePayload(123, true, AsyncRequestId(ClientId(0, 1), 2))));
+  o.push_back(new NotifyMessage(SnapCreatePayload(cls::rbd::UserSnapshotNamespace(),
+						  "foo")));
+  o.push_back(new NotifyMessage(SnapRemovePayload(cls::rbd::UserSnapshotNamespace(), "foo")));
+  o.push_back(new NotifyMessage(SnapProtectPayload(cls::rbd::UserSnapshotNamespace(), "foo")));
+  o.push_back(new NotifyMessage(SnapUnprotectPayload(cls::rbd::UserSnapshotNamespace(), "foo")));
+  o.push_back(new NotifyMessage(RebuildObjectMapPayload(AsyncRequestId(ClientId(0, 1), 2))));
+  o.push_back(new NotifyMessage(RenamePayload("foo")));
+  o.push_back(new NotifyMessage(UpdateFeaturesPayload(1, true)));
+}
+
+void ResponseMessage::encode(bufferlist& bl) const {
+  ENCODE_START(1, 1, bl);
+  ::encode(result, bl);
+  ENCODE_FINISH(bl);
+}
+
+void ResponseMessage::decode(bufferlist::iterator& iter) {
+  DECODE_START(1, iter);
+  ::decode(result, iter);
+  DECODE_FINISH(iter);
+}
+
+void ResponseMessage::dump(Formatter *f) const {
+  f->dump_int("result", result);
+}
+
+void ResponseMessage::generate_test_instances(std::list<ResponseMessage *> &o) {
+  o.push_back(new ResponseMessage(1));
+}
+
+} // namespace watch_notify
+} // namespace librbd
+
+std::ostream &operator<<(std::ostream &out,
+                         const librbd::watch_notify::NotifyOp &op) {
+  using namespace librbd::watch_notify;
+
+  switch (op) {
+  case NOTIFY_OP_ACQUIRED_LOCK:
+    out << "AcquiredLock";
+    break;
+  case NOTIFY_OP_RELEASED_LOCK:
+    out << "ReleasedLock";
+    break;
+  case NOTIFY_OP_REQUEST_LOCK:
+    out << "RequestLock";
+    break;
+  case NOTIFY_OP_HEADER_UPDATE:
+    out << "HeaderUpdate";
+    break;
+  case NOTIFY_OP_ASYNC_PROGRESS:
+    out << "AsyncProgress";
+    break;
+  case NOTIFY_OP_ASYNC_COMPLETE:
+    out << "AsyncComplete";
+    break;
+  case NOTIFY_OP_FLATTEN:
+    out << "Flatten";
+    break;
+  case NOTIFY_OP_RESIZE:
+    out << "Resize";
+    break;
+  case NOTIFY_OP_SNAP_CREATE:
+    out << "SnapCreate";
+    break;
+  case NOTIFY_OP_SNAP_REMOVE:
+    out << "SnapRemove";
+    break;
+  case NOTIFY_OP_SNAP_RENAME:
+    out << "SnapRename";
+    break;
+  case NOTIFY_OP_SNAP_PROTECT:
+    out << "SnapProtect";
+    break;
+  case NOTIFY_OP_SNAP_UNPROTECT:
+    out << "SnapUnprotect";
+    break;
+  case NOTIFY_OP_REBUILD_OBJECT_MAP:
+    out << "RebuildObjectMap";
+    break;
+  case NOTIFY_OP_RENAME:
+    out << "Rename";
+    break;
+  case NOTIFY_OP_UPDATE_FEATURES:
+    out << "UpdateFeatures";
+    break;
+  default:
+    out << "Unknown (" << static_cast<uint32_t>(op) << ")";
+    break;
+  }
+  return out;
+}
+
+std::ostream &operator<<(std::ostream &out,
+                         const librbd::watch_notify::AsyncRequestId &request) {
+  out << "[" << request.client_id.gid << "," << request.client_id.handle << ","
+      << request.request_id << "]";
+  return out;
+}